Redetermination of the phase equilibria in the system Tl2Te-Ag2Te

Brun, G.; Boubali, Mahjoub; Tedenac, Jean‐Claude; Ayral, R.M.; Légendre, B.

doi:10.1016/0040-6031(90)80209-h

Cited by 11 publications

(5 citation statements)

References 4 publications

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“…Tl 2 Te-Ag 2 Te pseudo binary phase diagram[7]. We confirmed that there are four ternary compounds in the system: AgTl 3 Te 2 , AgTlTe, Ag 8 Tl 2 Te 5 and Ag 9 TlTe 5 .0886-F09-07.2 was measured using the laser flash method (TC-7000, ULVAC Co. Ltd.) in vacuum.…”

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confidence: 65%

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Thermoelectric Properties of Ag-Tl-Te Ternary System

et al. 2005

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We have studied the thermoelectric properties of thallium compounds as novel thermoelectric materials. Especially, we focus on the Ag-Tl-Te ternary system, in which we found that Ag 9 TlTe 5 exhibits an excellent thermoelectric figure of merit (ZT= 1.23) because of its extremely low thermal conductivity (around 0.22 Wm -1 K -1 ). In this paper, we studied the thermal conductivity of four kinds of ternary silver thallium tellurides: AgTl 3 Te 2 , AgTlTe, Ag 8 Tl 2 Te 5 and Ag 9 TlTe 5 , for which we found room temperature values of 0.39, 0.26, 0.14 and 0.21 Wm -1 K -1 , respectively. In order to understand the extremely low thermal conductivity, we performed an ultrasonic pulse echo measurement and evaluated some thermophysical properties.

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confidence: 65%

“…Some researchers have reported the phase equilibria for the Tl 2 Te-Ag 2 Te pseudo binary system [5][6][7]. A comparison of the data reported in the literature confirms that the Tl 2 Te-Ag 2 Te pseudo binary system contains four ternary compounds: AgTl 3 Te 2 , AgTlTe, Ag 8 Tl 2 Te 5 and Ag 9 TlTe 5 .…”

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confidence: 71%

Thermoelectric Properties of Ag-Tl-Te Ternary System

et al. 2005

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“…13 The electrical properties of Ag 9 TlTe 5 are shown in Fig. The measured melting temperature agrees well with that scanned from the Tl 2 Te-Ag 2 Te pseudo-binary system.…”

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confidence: 99%

Ag 9 Tl Te 5 : A high-performance thermoelectric bulk material with extremely low thermal conductivity

Kurosaki

Kosuga

Muta

et al. 2005

Applied Physics Letters

265

184

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“…It is confirmed that the chemical composition of the products does not deviate from the stoichiometric ratio. The melting temperature determined by the TG-DTA measurement is 740 K, which is slightly lower than that in the literature [12]. The temperature dependences of thermal diffusivity and thermal conductivity of AgTlTe are shown in Fig.…”

Section: Resultsmentioning

confidence: 57%

“…The crystal structure and phase relation of silver thallium chalcogenides, AgTlX (X = S, Se, Te) have been studied until now [11][12][13][14][15]. It is said that only the compound AgTlTe may be interesting as a thermoelectric materials [14,15].…”

Section: Introductionmentioning

confidence: 99%